| 摘要 |
PROBLEM TO BE SOLVED: To provide a current supply device which achieves reduction in size, manufacturing cost, and light emitting variation of light emitters.SOLUTION: A current supply device 2 includes: a plurality of light emitters 111, 112, 113; a single constant current source 40; and a control circuit 300 for controlling a supply destination of a constant current and the constant current source 40 in a manner to supply the same or different constant current to each of the plurality of light emitters 111, 112, 113.SELECTED DRAWING: Figure 2 |
